21410378

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{131}}^1$

素因数の和:203

約数の個数: 64

約数和(自身を含む): 41057280

約数和(自身を除く): 19646902

約数列:

[1, 2, 11, 17, 19, 22, 23, 34, 38, 46, 131, 187, 209, 253, 262, 323, 374, 391, 418, 437, 506, 646, 782, 874, 1441, 2227, 2489, 2882, 3013, 3553, 4301, 4454, 4807, 4978, 6026, 7106, 7429, 8602, 9614, 14858, 24497, 27379, 33143, 42313, 48994, 51221, 54758, 57247, 66286, 81719, 84626, 102442, 114494, 163438, 465443, 563431, 629717, 930886, 973199, 1126862, 1259434, 1946398, 10705189, 21410378]

約数ペア:

[(1, 21410378), (2, 10705189), (11, 1946398), (17, 1259434), (19, 1126862), (22, 973199), (23, 930886), (34, 629717), (38, 563431), (46, 465443), (131, 163438), (187, 114494), (209, 102442), (253, 84626), (262, 81719), (323, 66286), (374, 57247), (391, 54758), (418, 51221), (437, 48994), (506, 42313), (646, 33143), (782, 27379), (874, 24497), (1441, 14858), (2227, 9614), (2489, 8602), (2882, 7429), (3013, 7106), (3553, 6026), (4301, 4978), (4454, 4807)]